Registration Dossier
Registration Dossier
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EC number: 288-752-8 | CAS number: 85895-78-9
Adsorption / desorption
Administrative data
Link to relevant study record(s)
- Endpoint:
- adsorption / desorption, other
- Type of information:
- (Q)SAR
- Adequacy of study:
- key study
- Study period:
- 2008-05-11
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- results derived from a valid (Q)SAR model and falling into its applicability domain, with adequate and reliable documentation / justification
- Justification for type of information:
- See attached background material, attached further below in the present section.
- Qualifier:
- according to guideline
- Guideline:
- other: REACH guidance on information requirements and chemical safety assessment, chapter R.6: QSARs and grouping of chemicals, May 2008.
- GLP compliance:
- no
- Type of method:
- other: QSAR calculation, KOCWIN v2.00
- Media:
- other: organic carbon (simulated, QSAR)
- Radiolabelling:
- no
- Type:
- Koc
- Value:
- ca. 1 L/kg
- Remarks on result:
- other: The Koc may vary by pH. The estimated value is applicable to the neutral pH range.
- Validity criteria fulfilled:
- not applicable
- Conclusions:
- The adsorption/desorption coefficient of lactic acid was estimated to be approximately 1 L/kg using the QSAR model KOCWIN v2.00.
- Executive summary:
The adsorption/desorption coefficient of lactic acid was estimated to be approximately 1 L/kg using the QSAR model KOCWIN v2.00.
- Endpoint:
- adsorption / desorption: screening
- Data waiving:
- study scientifically not necessary / other information available
- Justification for data waiving:
- the study does not need to be conducted because the substance and its relevant degradation products decompose rapidly
- other:
Referenceopen allclose all
Description of key information
No experimental data on potassium-S-lactate are available. In aqueous environments potassium-S-lactate fully dissociates into K+ ions and lactate ions. Therefore, the adsorption/desorption behaviour of potassium-S-lactate in the environment can be understood in terms of the adsorption/desorption behaviour of potassium chloride and lactic acid.
Adsorption of potassium chloride is not predicted to occur to an appreciable extent since potassium chloride is inorganic and has a high water solubility.
With an octanol-water partition coefficient (log Kow) of -0.72 no significant adsorption of lactic acid to organic matter is expected.
Key value for chemical safety assessment
- Koc at 20 °C:
- 1
Additional information
This information is used in a read-across approach in the assessment of the target substance.
For details and justification of read-across please refer to the attached report in section 13 of IUCLID.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
